4-(Bromomethyl)-5-iodo-2-methoxy-3-(trifluoromethoxy)pyridine
5-(Fluoromethyl)-4-iodo-2-methoxy-3-(trifluoromethoxy)pyridine
3-(Fluoromethyl)-4-iodo-5-methoxy-2-(trifluoromethoxy)pyridine
3-(Fluoromethyl)-2-iodo-5-methoxy-4-(trifluoromethoxy)pyridine